Add 30/21 and 9/6
1st number: 1 9/21, 2nd number: 1 3/6
30/21 + 9/6 is 41/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
30/21 = 30 × 2/21 × 2 = 60/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
9/6 = 9 × 7/6 × 7 = 63/42 - Add the two like fractions:
60/42 + 63/42 = 60 + 63/42 = 123/42 - 123/42 simplified gives 41/14
- So, 30/21 + 9/6 = 41/14
In mixed form: 213/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21+9/6 30/21+18/6 30/42+9/6 30/21+9/12 90/21+9/6 30/21+27/6 30/63+9/6 30/21+9/18 30/21+45/6 30/21+9/30 30/21+63/6 30/21+9/42